Patents by Inventor Risa Tom Egerter

Risa Tom Egerter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11992635
    Abstract: In one aspect, a medical balloon assembly includes a tip sleeve secured to the distal end portion of a balloon catheter that includes the distal neck of a balloon. The tip sleeve has at least an inner layer and an outer layer. The inner layer is formed from a bondable material that is directly bondable to the exterior of the distal neck portion of the balloon. The tip sleeve is bonded directly to the distal neck of the balloon. The outer layer is formed from a lubricious polymer. Such a medical balloon assembly is made by receiving the distal neck inside the proximal end portion of the tip sleeve and directly bonding the distal neck of the balloon to the inner layer of the tip sleeve.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 28, 2024
    Assignee: MEDTRONIC VASCULAR, INC.
    Inventor: Risa Tom Egerter
  • Patent number: 11826092
    Abstract: A guidewire includes an elongated member and a shaft extending distally from the elongated member, wherein the elongated member and shaft are configured to be navigated through vasculature of a patient. The guidewire further includes a first conductor extending around the shaft to define an outer perimeter of the guidewire and a first electrode adjacent the shaft. The first conductor is configured electrically connect the first electrode to an energy source. The guidewire further includes a second electrode and a second conductor configured to electrically couple the second electrode to the energy source. The first and second electrodes may be configured to deliver an electrical signal to fluid contacting the first and second electrodes to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 28, 2023
    Assignee: Medtronic Vascular, Inc.
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray
  • Patent number: 11707289
    Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: July 25, 2023
    Assignee: Medtronic Vascular, Inc.
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray, Jonathan Ashley Cope, Peter Glynn, Christopher W. Storment, Jack Wallis
  • Publication number: 20220387044
    Abstract: The present disclosure provides a catheter assembly including a catheter tube and an expandable unit attached to the catheter tube. The expandable unit is configurable in a collapsed configuration for facilitating delivery of the catheter assembly through a body lumen and a fully expanded configuration for contacting an interior wall of the body lumen to cover a perforation. The expandable unit defines a longitudinal channel extending from a proximal end to a distal end of the expandable unit when in the fully expanded configuration, permitting blood flow past the expandable unit. The disclosure further provides a method of treating a perforation by delivering a catheter assembly with an expandable unit to a perforation site, expanding the expandable unit to contact an interior wall of a body lumen to cover the perforation, and permitting blood flow past the expandable unit while in contact with the interior wall covering the perforation.
    Type: Application
    Filed: May 6, 2022
    Publication date: December 8, 2022
    Inventors: Dishuan Chu, Eamon McAndrew, Risa Tom Egerter, Caoimhe Marie Reilly, Mark John O'Connor
  • Publication number: 20220265295
    Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Application
    Filed: March 2, 2022
    Publication date: August 25, 2022
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray, Jonathan Ashley Cope, Peter Glynn, Christopher W. Storment, Jack Wallis
  • Publication number: 20220152364
    Abstract: In some examples, a catheter includes an elongated member including at least one balloon connected to the elongated member, the at least one balloon being configured to inflate to an expanded state. In the expanded state, the at least one balloon forms at least a portion of a cavity with a wall of a vessel of the patient. The catheter including at least one electrode carried by the elongated member and having at least one surface exposed to the cavity formed by the at least one balloon. The electrode is configured to connect to an energy source that is configured to deliver, via the electrode, an electrical signal to a fluid contained in the cavity and in contact with the electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Inventors: Jonathan Ashley Cope, Risa Tom Egerter, Gerry Oliver McCaffrey, Peter Glynn, Jack Wallis, Aran Murray
  • Patent number: 11266425
    Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: March 8, 2022
    Assignee: Medtronic Vascular, Inc.
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray, Jonathan Ashley Cope, Peter Glynn, Christopher W. Storment, Jack Wallis
  • Patent number: 11266817
    Abstract: In some examples, a catheter includes an elongated member including at least one balloon connected to the elongated member, the at least one balloon being configured to inflate to an expanded state. In the expanded state, the at least one balloon forms at least a portion of a cavity with a wall of a vessel of the patient. The catheter including at least one electrode carried by the elongated member and having at least one surface exposed to the cavity formed by the at least one balloon. The electrode is configured to connect to an energy source that is configured to deliver, via the electrode, an electrical signal to a fluid contained in the cavity and in contact with the electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: March 8, 2022
    Assignee: MEDTRONIC VASCULAR, INC.
    Inventors: Jonathan Ashley Cope, Risa Tom Egerter, Gerry Oliver McCaffrey, Peter Glynn, Jack Wallis, Aran Murray
  • Patent number: 10828140
    Abstract: An artificial urinary sphincter device is configured to be implanted in a relationship with a patient's urethra for the treatment of urinary incontinence. The size and shape of the device can vary for implantation on any of a wide variety of locations relative to the urethra such that it can exert a force onto the urethra for inhibiting or preventing involuntary leakage of urine.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: November 10, 2020
    Assignee: City of Hope
    Inventors: Cassandra Rose Joung Meyer, Sophia Rose Williams, Jonathan Robert Wong, Meijing Maggie Liu, Risa Tom Egerter, Kevin Chan, Lori C. Bassman
  • Publication number: 20200269023
    Abstract: In one aspect, a medical balloon assembly includes a tip sleeve secured to the distal end portion of a balloon catheter that includes the distal neck of a balloon. The tip sleeve has at least an inner layer and an outer layer. The inner layer is formed from a bondable material that is directly bondable to the exterior of the distal neck portion of the balloon. The tip sleeve is bonded directly to the distal neck of the balloon. The outer layer is formed from a lubricious polymer. Such a medical balloon assembly is made by receiving the distal neck inside the proximal end portion of the tip sleeve and directly bonding the distal neck of the balloon to the inner layer of the tip sleeve.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 27, 2020
    Inventor: Risa Tom Egerter
  • Publication number: 20200129196
    Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray, Jonathan Ashley Cope, Peter Glynn, Christopher W. Storment, Jack Wallis
  • Publication number: 20200129742
    Abstract: In some examples, a catheter includes an elongated member including at least one balloon connected to the elongated member, the at least one balloon being configured to inflate to an expanded state. In the expanded state, the at least one balloon forms at least a portion of a cavity with a wall of a vessel of the patient. The catheter including at least one electrode carried by the elongated member and having at least one surface exposed to the cavity formed by the at least one balloon. The electrode is configured to connect to an energy source that is configured to deliver, via the electrode, an electrical signal to a fluid contained in the cavity and in contact with the electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Jonathan Ashley Cope, Risa Tom Egerter, Gerry Oliver McCaffrey, Peter Glynn, Jack Wallis, Aran Murray
  • Publication number: 20200129231
    Abstract: A guidewire includes an elongated member and a shaft extending distally from the elongated member, wherein the elongated member and shaft are configured to be navigated through vasculature of a patient. The guidewire further includes a first conductor extending around the shaft to define an outer perimeter of the guidewire and a first electrode adjacent the shaft. The first conductor is configured electrically connect the first electrode to an energy source. The guidewire further includes a second electrode and a second conductor configured to electrically couple the second electrode to the energy source. The first and second electrodes may be configured to deliver an electrical signal to fluid contacting the first and second electrodes to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray
  • Publication number: 20190110877
    Abstract: An artificial urinary sphincter device is configured to be implanted in a relationship with a patient's urethra for the treatment of urinary incontinence. The size and shape of the device can vary for implantation on any of a wide variety of locations relative to the urethra such that it can exert a force onto the urethra for inhibiting or preventing involuntary leakage of urine.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Cassandra Rose Joung Meyer, Sophia Rose Williams, Jonathan Robert Wong, Meijing Maggie Liu, Risa Tom Egerter, Kevin Chan, Lori C. Bassman
  • Patent number: 10098720
    Abstract: An artificial urinary sphincter device is configured to be implanted in a relationship with a patient's urethra for the treatment of urinary incontinence. The size and shape of the device can vary for implantation on any of a wide variety of locations relative to the urethra such that it can exert a force onto the urethra for inhibiting or preventing involuntary leakage of urine.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 16, 2018
    Assignee: City of Hope
    Inventors: Cassandra Rose Joung Meyer, Sophia Rose Williams, Jonathan Robert Wong, Meijing Maggie Liu, Risa Tom Egerter, Kevin Chan, Lori C. Bassman
  • Publication number: 20160367349
    Abstract: An artificial urinary sphincter device is configured to be implanted in a relationship with a patient's urethra for the treatment of urinary incontinence. The size and shape of the device can vary for implantation on any of a wide variety of locations relative to the urethra such that it can exert a force onto the urethra for inhibiting or preventing involuntary leakage of urine.
    Type: Application
    Filed: March 22, 2016
    Publication date: December 22, 2016
    Inventors: Sophia Rose Williams, Jonathan Robert Wong, Meijing Maggie Liu, Risa Tom Egerter, Kevin Chan, Lori C. Bassman